/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.camel.component.kafka.consumer.support;

import java.util.Collection;
import java.util.regex.Pattern;

import org.apache.camel.component.kafka.consumer.support.subcription.TopicInfo;

public final class TopicHelper {

    private TopicHelper() {
    }

    public static String getPrintableTopic(Pattern topicPattern, Collection<String> topics) {
        if (topicPattern != null) {
            return "topic pattern " + topicPattern;
        } else {
            return "topic(s) " + String.join(",", topics);
        }
    }

    public static String getPrintableTopic(Pattern topicPattern, String topicName) {
        if (topicPattern != null) {
            return "topic pattern " + topicPattern;
        } else {
            return "topic(s) " + topicName;
        }
    }

    public static String getPrintableTopic(TopicInfo topicInfo) {
        return getPrintableTopic(topicInfo.getPattern(), topicInfo.getTopics());
    }
}
